-- The voltage doesn't change.
-- If the second light bulb is identical to the first, then the total resistance drops by half.
-- If they're not identical, then we have to know the details of both before we can
calculate their combined effective resistance.
In the circuit where the DC motor is added, it was not specified whether the motor was added in series or in parallel to circuit elements. If it was added in series, it will increase circuit resistance and it will cause circuit current to go down. In parallel, the motor will reduce total circuit resistance, and circuit current will increase.
Any devices that are added to a circuit and need the full line voltage to operate, are added in parallel to any other load devices or fixtures in the circuit.
series
The total resistance of the circuit increases. hence the new resistance after adding the resistance will be new resistance = old resistance + added Resistance There is a small mistake in the question. The second word is 'changes' not 'charges'
SERIES: A. If the additional battery is added to the circuit in a "Series Aiding" configuration, the bulb would get brighter. However, it would probably burn out very shortly, if not immediately, depending on the power rating of the bulb. Flashlight batteries such as two and three cell flashlights are usually series aiding. B. If the additional battery is added to the circuit in a "Series Opposing" configuration, the intensity of the bulb would decrease or go out completely if the opposing voltages are equal. (you can do a little experiment with a three or four cell flashlight by reversing the polarity of one or more of the batteries. The reversed battery will be series opposing and cancel 1.5 volts of the other batteries.) PARALLEL: If batteries are added to the circuit in parallel, the intensity of the bulb would remain the same but the batteries would last longer. Be sure the battery voltages are the same when adding batteries in parallel.
One of the parallel circuit focal points is that it guarantees all parts of the circuit have the same voltage as the source. Case in point, the second or each extra light added to the circuit would have the same shine.
No it's series circuit.
In the circuit where the DC motor is added, it was not specified whether the motor was added in series or in parallel to circuit elements. If it was added in series, it will increase circuit resistance and it will cause circuit current to go down. In parallel, the motor will reduce total circuit resistance, and circuit current will increase.
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• In a parallel circuit, there are junctions in the circuit so the current can flow around the circuit in more than one way. • In a series circuit the current decreases as more bulbs are added. •In a parallel circuit, as more bulbs are added, the current increases. • This is because bulbs added in parallel offer less resistance
You raise the total resistance by that amount if added in series to a circuit. If you add them in parallel to a circuit then that total resistance will be less than the total of the added circuit.
Any devices that are added to a circuit and need the full line voltage to operate, are added in parallel to any other load devices or fixtures in the circuit.
nothing
series
In a series circuit, if another bulb is added, it is going to dim.
The brightness of a bulb would not change if you added a second bulb in parallel with the first.Unless, of course, the increased current exceeded the power supply's capacity causing a reduction in voltage.
If you added more batteries in parallel, then the bulb would shine for a long time. If you added more batteries in series, then the bulb would burn very brightly for a short time and then 'burn out'.